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        Ti-6Al-4V 합금의 표면개질에 의한 calcium phosphate의 형성

        박은진,김도균,김교한, 융부,김형일,정용수 대한치과기재학회 2000 대한치과재료학회지 Vol.27 No.1

        The purpose of this study os to investigate the formation of calcium phosphate on Ti-6Al-4V surface on aqueous solutions containing phosphate and calcium ions. The surface of Ti-6Al-4V specimens were treated in phosphate buffered solutions for 3 days followed by immersion in calcium phosphate buffered solutions for 10 days. These solutions have different concentration and pH(pH 5.8, 7.0, 8.0) one another. Then, the specimens treated with P and Ca ions and control group without surface treatment were immersed in Hanks' balanced solution for 30 days to make sure the effectiveness of this surface treatment. All specimens were characterized using scanning electron microscopy(SEM), X-ray diffractometry(XRD) and Fourier transform infrared spectrophotometry(FT-IR). The amount of crystallized particles formed on the specimens by surface treatment was significantly increased in all experimental conditions as compared with that immersed only in Hanks' solution. Dense granular shaped precipitates were observed on the surface and these particles were recognized as calcium phosphate similar to HA(hydroxyapatite) or TCP(tri-calcium phosphate).

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